Portland Harbor
Natural Resource Damage Assessment |
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Superfund Site
The Portland Harbor area along the Lower Willamette River was named a Superfund site by the U.S. Environmental Protection Agency (EPA) in
2000. The Superfund study area extends
from river mile 1 (between the Multnomah Channel and
Columbia River) to river mile 11.8 (near the Broadway Bridge). The majority of the site is a working waterway with a wide variety of industries. |
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Restoring Natural Resources after Contamination
After a hazardous substance release, response
agencies
oversee the clean-up of the substance in order to reduce
risks to human health and the environment. However,
cleanup actions alone may not fully restore injured natural
resources or address the public’s lost use of the resources. The trustees are currently identifying potential restoration sites in Portland Harbor and have developed ranking criteria to evaluate a sites ability to address natural resource impacts. |
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Natural Resource Trustees
Through the Natural Resource Damage Assessment
(NRDA) process, the Natural Resource Trustees review
existing information and conduct studies to identify the extent of impacts (injuries) to natural resources, the best methods for restoring those resources, and the amount of restoration required.
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Significant Species
Pacific Lamprey are culturally important to indigenous people throughout their
range, and play a vital role in the ecosystem as food for mammals, fish and birds, for nutrient
cycling and storage, and as a prey buffer for other species. |
Portland Harbor NRDA Assessment Plan
A copy of the draft September 2009 Portland Harbor Assessment Plan will be available for public review on December 7, 2009.
To view the list of references that were considered during the development of the Plan, click here.
To access specific reference documents, click here; all documents may be dowloaded.
If you have questions or specific requests regarding these documents or wish to view them in hard copy, please contact Stephen Zylstra via email or phone at 503-231-6179.
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